翻訳と辞書 Words near each other ・ Trichopeza ・ Trichopeza albocincta ・ Trichopeza longicornis ・ Trichopezinae ・ Trichopeziza ・ Trichophaea ・ Trichophaea hemisphaerioides ・ Trichophaea woolhopeia ・ Trichophaeopsis ・ Trichophaga ・ Trichophaga mormopis ・ Trichophaga robinsoni ・ Trichophagia ・ Trichophantasis ・ Trichophassus ・ Trichopherophyton ・ Trichophiala devylderi ・ Trichophilus ・ Trichophoroides ・ Trichophoroides albisparsus ・ Trichophoroides aurivillii ・ Trichophoroides decipiens ・ Trichophoroides dozieri ・ Trichophoroides jansoni ・ Trichophoroides niveus ・ Trichophoroides pilicornis ・ Trichophoroides signaticolle ・ Trichophoroides variolosum ・ Trichophorum ・ Trichophorum alpinum Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Trichopherophyton ： ウィキペディア英語版 Trichopherophyton '' Trichopherophyton'' is a genus of extinct vascular plants of the Early Devonian (Pragian, around ). Fossils were found in the Rhynie chert, Scotland. The remains are very fragmentary, but the plant appears to be related to the zosterophylls.〔 ==Description== ''Trichopherophyton'' was described from very fragmentary fossils found in the Rhynie chert, Rhynie, Scotland, which is of Early Devonian, specifically Pragian, age. The overall growth habit of the plant is difficult to construct. Some stems reached 2.5 mm in diameter, but their height is unknown; branching was possibly pseudomonopodial (i.e. one arm of a dichotomous branch continued as a 'main' stem). Uniquely among the Rhynie chert plants, aerial stems bore rigid hairs or spines made up of single cells. Stems appear to have grown from coiled (circinnate) tips, in a manner similar to modern ferns. Stems contained circular exarch xylem strands with tracheids showing both annular and spiral thickening. The upright spore-forming organs or sporangia were made up of two 'valves', the larger one facing away from the stem and bearing hairs, the smaller facing towards the stem and apparently not bearing hairs. The precise arrangement of the sporangia on the stems cannot be determined; there may have been zones of sporangia. Spores were released through a slit opening along the margins of the two valves of a sporangium. The trilete spores were about 55 µm in diameter.〔 Hairless stems bearing rhizoids but with a similar anatomy to the aerial stems are possibly the rhizomes of ''Trichopherophyton''. Some actually grow through stems bearing hairs.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Trichopherophyton」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.